Waterless degumming system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 21, 2015
Grant Date -
Jul 18, 2013
app pub date -
Jul 21, 2011
filing date -
Jul 21, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system for cleaning lignin and other gums from lignocellulosic fiber is disclosed. Lignocellulosic fiber is rapidly depressurized to a pressure lower than atmospheric pressure. The fiber is exposed to ionized air during the rapid depressurization. The fiber is then repressurized to a pressure equal to or greater than atmospheric pressure.
First Claim
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International Classification(s)
- 2011 Application Filing Year
- D21B Class
- 27 Applications Filed
- 15 Patents Issued To-Date
- 55.56 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21B Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 21, 2026 |
